ATS Le Grandiose, Sector 150 Noida. Energy Conservation Building Code (ECBC) Compliance Report

Transcription

1 Energy Conservation Building Code (ECBC) Compliance Report

2 ATS Le Grandiose, Sector 150 Noida Energy Conservation Building Code (ECBC) Compliance Report For M/s. Nobility Estates Pvt. Ltd. ECBC CONTENTS ECBC INTRODUCTION BUILDING & SITE INFORMATION ENERGY MODELLING OVERVIEW Building Geometry MODELING INPUT PARAMETERS U Value Calculations ENERGY SIMULATION RESULTS Tower 1 & 2 (Type B) Tower 3-8 (Type A) Tower 9 & 10 (Type B) Tower 11 & 12 (Type C) Tower (Type C) Tower 20 & 21 (Type B) Club 1 & ECBC is an acronym for Energy Conservation Building Code. The purpose of this code is to provide minimum requirements for the energy-efficient design and construction of buildings 1

3 PROJECT BREIF M/s Nobility Estates Pvt. Ltd. has Proposed Group Housing Project (ATS Le Grandiose), At Plot No. SC-01/C-A1, Sports City, Sector 150, Noida, Uttar Pradesh, having Plot Area sq. m. and built up area Sqm. ATS Le Grandiose is with 1172 dwelling units. Considering the nature of activities to be conducted and the various aspects of the project to be developed, our efforts in the approach for the planning of various systems, shall include the following considerations: In the operational phase, appropriate energy conservation measures and management plan will be adopted in order to minimize the consumptions of nonrenewable fuel. CFL/LED will be used in place of incandescent lamps in office, common areas and parking. Percentage saving in energy consumption due to use of CFL/LED will be %. Lighting and switching of common area shall be designed keeping in mind day light integration. Roof insulation shall be planned to conserve energy. D.G. sets would be provided with auto cut and auto start mechanism. The water supply pumping system shall be provided with variable speed drive to conserve energy at part load. Glass opening will be provided with-in the ECBC limit of 40 %. Building will have appropriate design to shut out excess heat and gain loss. 2

4 LOCATION & CLIMATIC DATA The Proposed Group Housing Project (ATS Le Grandiose), At Plot No. SC-01/C-A1, Sports City, Sector 150, Noida, Uttar Pradesh comes under composite climate conditions. Please find below the ECBC climatic zone map (India) for your kind reference. 3

5 ECBC COMPLIANCE (Whole Building Performance Approach) 1.0 Introduction The purpose of this report is to assess the compliance of the proposed design of the building and building systems in line with the Energy Conservation Building Code (ECBC). A building shall be called ECBC compliant by complying with the mandatory provisions ( 4.2- Envelope, 5.2-HVAC, 6.2- SHW, Lighting, and 8.2 Power) and either of the following: (a) Prescriptive Method ( 4.3, 5.3, 7.3) (b) Whole Building Performance Method (Appendix B 10) Approach of Option B above is being followed to assess compliance for this project. Specialized building performance modelling software (equest v3.63b) provided a platform for the energy modelling process. The proposed building geometry was translated into equest v3.63b to create a 3-dimesional model, other modelling inputs into equest v3.63b included; lighting, equipment & occupancy gains, operating profiles, plant efficiencies, thermal performance of constructions 4 To show compliance through Option B, the annual energy consumption of the proposed building, as estimated by the modeling software, shall be less than the annual energy

6 consumption of the ECBC compliant base building, as estimated by the same modeling software 2.0 Building & Site Information The site included three types of apartments, namely Type A, B and C. There are 6 towers of Type A, 6 towers of Type B and 8 towers of Type C for a total of 20 towers. The site is in Noida which comes under composite climate zone as classified by ECBC. 3.0 Energy Modelling Overview The Proposed energy model was defined and the proposed annual energy use calculated. Shell multiplier was used for all floors as they were typical in nature. The energy modelling undertaken included the use of both thermal modelling software (equest v3.63b) and manual calculations. equest v3.63b thermal modelling software simulated required plant sizes and annual energy use of the cooling systems for the proposed energy model. For simplicity, the 2 levels of basement were not modeled. 3.1 Building Geometry The geometry of the proposed building was input in equest v3.63b to create the 3- dimensional computer model shown in Figure 1 FIGURE 1: MODELLED GEOMETRY 5

7 4.0 Modeling Input Parameters Input Parameter Baseline Proposed Units Architectural Wall material As per ECBC 150 mm RCC wall work with 30 mm plaster Wall U-value Btu/hr ft 2 F Roof material As per ECBC 150 mm RCC with brick bat coba and 40 mm screed Roof U-value Btu/hr ft 2 t F Glazing U Value Btu/hr ft 2 F Glazing SHGC Frame Type N/A UPVC Window Shading & balconies N/A modelled HVAC (area under developer scope, for remaining area below mentioned guideline would be recommend to dwelling unit owner) Zone Cooling set point Zone Heating set point deg F deg F Cooling Sizing Ratio Heating Sizing Ratio Cooling System Packed Single Zone Packed Single Zone Cooling COP (Dwelling) 3.1 (BEE 3 Star) 3.1 (BEE 3 Star) Cooling COP (Club) 3.1 (BEE 3 Star) 3.1 (BEE 3 Star) 6 Heating COP

8 Lighting, Occupancy and Schedules Lighting Power Density (Building Area Method) W/ ft 2 Occupancy Bed Room -2; Bed Room -2; Person Living Room 5 Living Room - 5 Schedule Residential: Residential: 8 am to 6pm- 50% 6 pm to 8 am 100 % 8 am to 6pm- 50% 6 pm to 8 am 100 % 4.1 U Value Calculations Wall Wall U-Value Material Thickness (m) K-Value (W/m K) R-Value (sq.m K/W) U-Value (W/sq.m K) U-Value (BTU/sq.ft hr F) ext. air film Plaster RCC Plaster int. air film 0.13 Total Roof Roof U-Value Material Thickness (m) K-Value (W/m K) R-Value (sq.m K/W) U-Value (W/sq.m K) U-Value (BTU/sq.ft hr F) ext. air film plaster screed RCC plaster int. air film 0.10 Total

9 5.0 Energy Simulation Results Results are presented only based on the orientation and type of the building block. 5.1 Tower 1 & 2 (Type B) FIGURE 2: 3D MODEL VIEW OF TOWER B TABLE 1: ENERGY END USE PROPOSED & BASELINE IN KWH TOWER 1 & 2 (TYPE B) DESCRIPTION UNITS LIGHTS MISC EQUIP SPACE HEATING SPACE COOLING VENT FANS TOTAL BASELINE - 0 DEG KWH BASELINE - 90 DEG KWH BASELINE DEG KWH BASELINE DEG KWH BASELINE - AVG KWH PROPOSED KWH ENERGY SAVINGS 8% 8

10 FIGURE 3: SIMULATION OUTPUT - TOWER 1 & 2 (TYPE B) _ BASELINE 0 FIGURE 4: SIMULATION OUTPUT - TOWER 1 & 2 (TYPE B) _ BASELINE 90 FIGURE 5: SIMULATION OUTPUT - TOWER 1 & 2 (TYPE B) _ BASELINE 180 9

11 FIGURE 6: SIMULATION OUTPUT - TOWER 1 & 2 (TYPE B) _ BASELINE 270 FIGURE 7: SIMULATION OUTPUT - TOWER 1 & 2 (TYPE B) _ PROPOSED 10

12 5.2 Tower 3-8 (Type A) FIGURE 8:3D MODEL VIEW OF TOWER A TABLE 2: ENERGY END USE PROPOSED & BASELINE IN KWH TOWER 3 THROUGH 8 (TYPE A) DESCRIPTION UNITS LIGHTS MISC EQUIP SPACE HEATING SPACE COOLING VENT FANS TOTAL BASELINE - 0 DEG KWH BASELINE - 90 DEG KWH BASELINE DEG KWH BASELINE DEG KWH PROPOSED KWH ENERGY SAVINGS 9% 11

13 FIGURE 9: SIMULATION OUTPUT - TOWER 3 THROUGH 8 (TYPE A) _ BASELINE 0 FIGURE 10: SIMULATION OUTPUT - TOWER 3 THROUGH 8 (TYPE A) _ BASELINE 90 FIGURE 11: SIMULATION OUTPUT - TOWER 3 THROUGH 8 (TYPE A) _ BASELINE

14 FIGURE 12: SIMULATION OUTPUT - TOWER 3 THROUGH 8 (TYPE A) _ BASELINE 270 FIGURE 13: SIMULATION OUTPUT - TOWER 3 THROUGH 8 (TYPE A) _ PROPOSED 13

15 5.3 Tower 9 & 10 (Type B) FIGURE 14: 3D MODEL VIEW OF TOWER B TABLE 3: ENERGY END USE PROPOSED & BASELINE IN KWH TOWER 9 & 10 (TYPE B) DESCRIPTION UNITS LIGHTS MISC EQUIP SPACE HEATING SPACE COOLING VENT FANS TOTAL BASELINE - 0 DEG KWH BASELINE - 90 DEG KWH BASELINE DEG KWH BASELINE DEG KWH BASELINE - AVG KWH PROPOSED KWH ENERGY SAVINGS 11% 14

16 FIGURE 15: SIMULATION OUTPUT - TOWER 9 & 10 (TYPE B) _ BASELINE 0 FIGURE 16: SIMULATION OUTPUT - TOWER 9 & 10 (TYPE B) _ BASELINE 90 FIGURE 17: SIMULATION OUTPUT - TOWER 9 & 10 (TYPE B) _ BASELINE

17 FIGURE 18: SIMULATION OUTPUT - TOWER 9 & 10 (TYPE B) _ BASELINE 270 FIGURE 19: SIMULATION OUTPUT - TOWER 9 & 10 (TYPE B) _ PROPOSED 16

18 5.4 Tower 11 & 12 (Type C) FIGURE 20: 3D MODEL VIEW OF TOWER C TABLE 4: ENERGY END USE PROPOSED & BASELINE IN KWH TOWER 11 & 12 (TYPE C) DESCRIPTION UNITS LIGHTS MISC EQUIP SPACE HEATING SPACE COOLING VENT FANS TOTAL BASELINE - 0 DEG KWH BASELINE - 90 DEG KWH BASELINE DEG KWH BASELINE DEG KWH BASELINE - AVG KWH PROPOSED KWH ENERGY SAVINGS 3% 17

19 FIGURE 21: SIMULATION OUTPUT - TOWER 11 & 12 (TYPE C) _ BASELINE 0 FIGURE 22: SIMULATION OUTPUT - TOWER 11 & 12 (TYPE C) _ BASELINE 90 FIGURE 23: SIMULATION OUTPUT - TOWER 11 & 12 (TYPE C) _ BASELINE

20 FIGURE 24: SIMULATION OUTPUT - TOWER 11 & 12 (TYPE C) _ BASELINE 270 FIGURE 25: SIMULATION OUTPUT - TOWER 11 & 12 (TYPE C) _ PROPOSED 19

21 5.5 Tower (Type C) FIGURE 26: 3D MODEL VIEW OF TOWER C TABLE 5: ENERGY END USE PROPOSED & BASELINE IN KWH TOWER 14 THROUGH 19 (TYPE C) DESCRIPTION UNITS LIGHTS MISC EQUIP SPACE HEATING SPACE COOLING VENT FANS TOTAL BASELINE - 0 DEG KWH BASELINE - 90 DEG KWH BASELINE DEG KWH BASELINE DEG KWH BASELINE - AVG KWH PROPOSED KWH ENERGY SAVINGS 6%

22 FIGURE 27: SIMULATION OUTPUT - TOWER 14 THROUGH 19 (TYPE C) _ BASELINE 0 FIGURE 28: SIMULATION OUTPUT - TOWER 14 THROUGH 19 (TYPE C) _ BASELINE 90 FIGURE 29: SIMULATION OUTPUT - TOWER 14 THROUGH 19 (TYPE C) _ BASELINE

23 FIGURE 30: SIMULATION OUTPUT - TOWER 14 THROUGH 19 (TYPE C) _ BASELINE 270 FIGURE 31: SIMULATION OUTPUT - TOWER 14 THROUGH 19 (TYPE C) _ PROPOSED 22

24 5.6 Tower 20 & 21 (Type B) FIGURE 32: 3D MODEL VIEW OF TOWER B TABLE 6: ENERGY END USE PROPOSED & BASELINE IN KWH TOWER 20 & 21 (TYPE B) DESCRIPTION UNITS LIGHTS MISC EQUIP SPACE HEATING SPACE COOLING VENT FANS TOTAL BASELINE - 0 DEG KWH BASELINE - 90 DEG KWH BASELINE DEG KWH BASELINE DEG KWH BASELINE - AVG KWH PROPOSED KWH ENERGY SAVINGS 9%

25 FIGURE 33: SIMULATION OUTPUT - TOWER 20 & 21 (TYPE B) _ BASELINE 0 FIGURE 34: SIMULATION OUTPUT - TOWER 20 & 21 (TYPE B) _ BASELINE 90 FIGURE 35: SIMULATION OUTPUT - TOWER 20 & 21 (TYPE B) _ BASELINE

26 FIGURE 36: SIMULATION OUTPUT - TOWER 20 & 21 (TYPE B) _ BASELINE 270 FIGURE 37: SIMULATION OUTPUT - TOWER 20 & 21 (TYPE B) _ PROPOSED 25

27 5.7 Club 1 & 2 FIGURE 38: 3D MODEL VIEW OF CLUB TABLE 7: ENERGY END USE PROPOSED & BASELINE IN KWH CLUB DESCRIPTION UNIT S LIGHTS MISC EQUIP SPACE HEATIN G SPACE COOLIN G VENT FANS TOTAL BASELINE - 0 DEG KWH BASELINE - 90 DEG KWH BASELINE DEG KWH BASELINE DEG KWH BASELINE - AVG KWH PROPOSED KWH ENERGY / COST SAVINGS 10% 26

28 FIGURE 39: SIMULATION OUTPUT CLUB _ BASELINE 0 FIGURE 40: SIMULATION OUTPUT - CLUB _ BASELINE 90 FIGURE 41: SIMULATION OUTPUT - CLUB _ BASELINE

29 FIGURE 42: SIMULATION OUTPUT - CLUB _ BASELINE 270 FIGURE 43: SIMULATION OUTPUT - CLUB _ PROPOSED 28

30 Annexure I: Proposed technical specification of additional equipment s and materials complying to ECBC requirement i) Building Envelop S.No. Item Specification 1 Fenestration (4.2.1) All fenestration complying with the following requirement: U- Factor Solar Heat Gain Coefficient (SHGC) Air Leakage 2 Opaque Construction (4.2.2) U-factors & Solar Heat Gain Coefficient (SHGC) is determined for the overall fenestration product (including the sash and frame) in accordance with ISO , as specified in ECBC, by an accredited independent laboratory, and labeled and certified by the manufacturer or other responsible party. Air leakage for glazed swinging entrance doors and revolving doors does not exceed 5.0 l/sm2. Air leakage for other fenestration and doors does not exceed 2.0 l/s-m2. The proposed opaque construction (Walls & Roofs) is as follows : U-factors are determined from the ECBC or determined from data or procedures contained in the ASHRAE Fundamentals, Building Envelope Sealing (4.2.3) The following areas of the enclosed building envelope is to be sealed, caulked, gasketed, or weather-stripped to minimize air leakage: (a) Joints around fenestration and door frames (b) Openings between walls and foundations and between walls and roof and wall panels 29

31 (c) Openings at penetrations of utility services through, roofs, walls, and floors (d) Site-built fenestration and doors (e) Building assemblies used as ducts or plenums (f) All other openings in the building envelope 4 Shading All vertical fenestration (Glazed doors & windows) are well shaded by the balcony overhang of at least 1500 mm depth. 5 Cool Roofs The terraces to be with high reflective material finish. The overall SRI would be more than Skylight Not Proposed ii) Heating, Ventilation and Air Conditioning S.No. Item Specification 30 1 Natural Ventilation (5.2.1) Openable doors/ windows are proposed in all dwelling units ensuring the natural ventilation complying with the design guidelines provided for natural ventilation in the National Building Code of India 2005 Part 8 Section 1, and 5.7.1

32 2 Minimum Equipment Efficiencies (5.2.2) BEE Star Unitary Air Conditioners (Dwelling Units) would be recommended to all owners by the project developer meeting IS 1391 (Part 1), Split air conditioner would be BEE 5 star to meet IS 1391 (Part 2). Cooling equipment to meet the minimum efficiency requirements presented in Table 5.1 (provided below). Heating and cooling equipment not listed here would comply with ASHRAE Unitary Air Conditioners (Dwelling Units) would meet IS 1391 (Part 1), Split air conditioner would meet IS 1391 (Part 2), Packaged air conditioner would meet IS 8148 and Boilers would meet IS with above 75% thermal efficiency. 3 Controls (5.2.3) All mechanical cooling and heating systems are controlled by a Time clock that: (a) Can start and stop the system under different schedules for three different day-types per week (b) Is capable of retaining programming and time setting during loss of power for a period of at least 10 hours, and 31

33 (c) Includes an accessible manual override that allows temporary operation of the system for up to 2 hours Exceptions: (a) Cooling systems < 28 kw (8 tons) (b) Heating systems < 7 kw (2 tons) 4 Piping and Ductwork (5.2.4) All heating and cooling equipment are with temperature controlled. Where a unit provides both heating and cooling, controls would be capable of providing a temperature dead band of 3 C (5 F) within which the supply of heating and cooling energy to the zone is shut off or reduced to a minimum. Where separate heating and cooling equipment serve the same temperature zone, thermostats would be interlocked to prevent simultaneous heating and cooling. All cooling towers and closed circuit fluid coolers would have variable speed drives controlling the fans. Piping for heating systems with a design operating temperature of 60 C (140 F) or greater have at least R-0.70 (R- 4) insulation. Piping for heating systems with a design operating temperature less than 60 C (140 F) but greater than 40 C (104 F), piping for cooling systems with a design operating temperature less than 15 C (59 F), and refrigerant suction piping on split systems would have at least R (R- 2) insulation. Insulation exposed to weather would be protected by aluminum sheet metal. Cellular foam insulation would be protected as above System Balancing (5.2.5) Ductwork would be insulated to achieve R value of 1.4 All HVAC systems would be balanced in accordance with generally accepted engineering standards. A written balance report is to be provided to the owner or the designated representative of the building owner for HVAC systems serving

34 zones with a total conditioned area exceeding 500 m2 (5,000 ft2). Air System Balancing Air systems would be balanced in a manner to first minimize throttling losses. Then, for fans with fan system power greater than 0.75 kw (1.0 hp), fan speed would be adjusted to meet design flow conditions. Hydronic System Balancing iii) Service Hot Water and Pumping Hydronic systems would be proportionately balanced in a manner to first minimize throttling losses; then the pump impeller would be trimmed or pump speed would be adjusted to meet design flow conditions. S.No. Item Specification 1 Solar Water Heating (6.2.1) Residential facilities to have solar water heating for at least 25% of the total energy required to meet hot water demand ( liters/day) at roof top 2 Equipment Efficiency (6.2.2) Service water heating equipment meets the performance and minimum efficiency requirements presented in available Indian Standards 33

35 (a) Solar water heater meets the performance/ minimum efficiency level mentioned in IS Part (1&2) (b) Electric water heater meets the performance / minimum efficiency level mentioned in IS Piping Insulation (6.2.4) Piping insulation would comply with ECBC. The entire hot water system including the storage tanks, pipelines would be insulated conforming to the relevant IS standards on materials and applications. 4 Heat Traps (6.2.5) iv) Lighting Vertical pipe risers serving storage water heaters and storage tanks not having integral heat traps and serving a non-recirculating system would have heat traps on both the inlet and outlet piping as close as practical to the storage tank. S.No. Item Specification 1 Lighting Control (7.2.1) Automatic Lighting Shutoff Interior lighting systems in buildings lobby would be equipped with an automatic control device. Within these buildings, all school classrooms, and all lobbies would be equipped with occupancy sensors. 34

36 Space Control Each space enclosed by ceiling-height partitions would have at least one control device to independently control the general lighting within the space. Each control device would be activated either manually by an occupant or automatically by sensing an occupant. Exterior Lighting Control Lighting for all exterior applications would be controlled by astronomical time switch that is capable of automatically turning off the exterior lighting when daylight is available or the lighting is not required. 2 Exit Signs (7.2.2) 3 Exterior Building Grounds Lighting (7.2.3) 4 Lighting Power Densities (LPD) Internally-illuminated exit signs would not exceed 5W per face. Lighting for exterior building grounds luminaires which operate at greater than 100W would contain lamps having a minimum efficacy of 60 lm/w unless the luminaire is controlled by a motion sensor. 20% reduction in ECBC prescribed values with use of LED higher efficacy LED lighting fixtures. 35

37 v) Electric Power S.No. Item Specification 1 Transformers (8.2.1) Maximum Allowable Power Transformer Losses Power transformers of the proper ratings and design must be selected to satisfy the minimum acceptable efficiency at 50% and full load rating. In addition, the transformer must be selected such that it minimizes the total of its initial cost in addition to the present value of the cost of its total lost energy while serving its estimated loads during its respective life span. 36

38 2 Energy Efficient Motors (8.2.2) Motors would comply with the following: (a) All permanently wired poly phase motors of kw or more serving the building and expected to operate more than 1,500 hours per year and all permanently wired poly phase motors of 50kW or more serving the building and expected to operate more than 500 hours per year would have a minimum acceptable nominal full load motor efficiency not less than IS for energy efficient motors. 37

39 (b) Motors of horsepower differing from those listed in the table would have efficiency greater than that of the next listed kw motor (c) Motor horsepower ratings would not exceed 20% of the calculated maximum load being served (d) Motor nameplates would list the nominal full-load motor efficiencies and the full-load power factor (e) Motor users should insist on proper rewinding practices for any rewound motors. If the proper rewinding practices cannot be assured, the damaged motor should be replaced with a new, efficient one rather than suffer the significant efficiency penalty associated with typical rewind practices 3 Power Factor Correction (8.2.3) (f) Certificates would be obtained and kept on record indicating the motor efficiency. Whenever a motor is rewound, appropriate measures would be taken so that the core characteristics of the motor is not lost due to thermal and mechanical stress during removal of damaged parts. After rewinding, a new efficiency test would be performed and a similar record would be maintained All electricity supplies exceeding 100 A, 3 phases would maintain their power factor between 0.95 lag and unity at the point of connection Check-Metering and Monitoring (8.2.4) (a) Services exceeding 1000 kva would have permanently installed electrical metering to record demand (kva), energy (kwh), and total power factor. The metering would also display current (in each phase and the neutral), voltage (between phases and between each phase and neutral), and total harmonic distortion (THD) as a percentage of total current (b) Services not exceeding 1000 kva but over 65 kva would have permanently installed electric metering to record demand (kw), energy (kwh), and total power factor (or kvarh)

40 (c) Services not exceeding 65 kva would have permanently installed electrical metering to record energy (kwh) 5 Power Distribution System Losses (8.2.5) The power cabling would be adequately sized as to maintain the distribution losses not to exceed 1% of the total power usage. Record of design calculation for the losses would be maintained. 39

41 Annexure II: Proposed Building Plans Site Plan 40

42 Building Plan (Type A) 41

43 Building Plan (Type B) 42

44 Building Plan (Type C) 43

45 Clubs 44

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47 Annexure III: Estimated Solar PV Generation The proposed solar photovoltaic system of 10 KWp would generate approximately Kwh estimated through PVwatts India Calculator. 46

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50 Annexure III: Certificates Date: 01/10/2017 To whom it may concern This is to certify that on implementation of all above mentioned ECBC mandatory compliances, the project ATS Grandiose, Sector 150 Noida is ECBC compliant. Thanks & Regards, Udit Gaurav Green Building & ECBC Professional GRIHA Evaluator & Trainer Indian Green Building Council Accredited Professional

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